Medical Definition of allium
1 capitalized : a genus of bulbous herbs (as an onion, garlic, or leek) of the lily family distinguished by a characteristic odor, sheathing, mostly basal leaves, and clusters of usually white, blue, purple, pink, or red flowers
2a: a plant of the genus Alliumb: the bulb of garlic formerly used in medicine especially as an expectorant and rubefacient
Learn More about allium
Dictionary: Definition of "allium"
Seen and Heard
What made you want to look up allium? Please tell us where you read or heard it (including the quote, if possible).